Apparatus for forcing fluids from wells.



W. P RANDALL. APPARATUS POB. FOEUINGI FLUIDSPBOM WELLS. APPLIOATION FILED rma. 3,1913.

UNTTEDl STATES PATENT oEEIcE.

WILLIAM RADALL, OF LE ROY., NEW-YORK, ASSIGNOR TO JOSEPH S. L. PURD, OF f LE ROY, NEW YORK.

APPARATUS FOR FORCING FLUIDS FROM WELLS.

Specification of Letters Patent. Patented July 2.1, 1914,.

Application led 'Februry 3, 1913. Serial No. 746.003.

'To aZZ whom, it may concern:

Be it known that I, WILLIAM P. RANDALL, of Le Roy, in the county of Genesee and State of New'York, have invented certain new and useful Improvements in Apparatus for Forcing Fluids from Wells; 'and I do hereby declare the following to be a full, clear, and exact description of the same,

reference being had to the accompanying drawings, forming a part of thls specifica-V tion, and to the reference numerals marked thereon.

H v present invention relates to apparatus employed for removing or' expelling accumulations Aof oil and Water in natural gas wells and it has for its object to provide an improved mechanism which may be inserted in the well, comprising-a gas pressure chamber and an eduction pipe, together with a suitable arrangement of valve lheads and seats` located near the bottom of the well, whereby the fluid therein may be caused to rise into the eduction tube, above its normal level, and there entrapped andsubsequently ejected by gas pressure introduced into the pressure chamber.

To these and other ends, my invention 'consists in certain improvements and combinations ot' parts all as will be morefully described hereinafter, the novel features being pointed out 1n the clalms appended hereto.

4In the drawings: Figure l is a vertical sectional view showinga mechanism constructed in accordance with my invention, and Fig. 3 is an enlarged view showing in detail. the lower end of the pressure chamber and the parts arranged therein.

Similar reference numerals'in the several figures indicate the same parts.

v'tn apparatus embodying my invention is adapted to he used in either shallow 0r deep drilled wells. which it .willbe undedstood,

may. be provided with one or more strings of casing. but in illustrating my invention, I have. on!)VV shown a single'casing A, extending from the surface of the ground to any desired depth. lVithin this Ycasing is the gas tube B. its lower end extending to the bottom of the well. where itis provided with perforatious b. The upper end of the gas tube projects from the mouth of the Well andat a suitable intermediate point therein' the space between it and the outer casing A is closed by the usual or any desired form of packer a Vwhich prevents escape 0f the gas from the well requiring all of the gas lssumg from the productive stratum of sand to pass'upwardly within thetube B' from which it may escape through the well line pipe B,which is provied with the valve B2.

Connection is made .between .the pipes B, B through the cross ltting C, which also pression line D, the two latter pipes being each provided with valves cf'and d for controlling the flow of gas therethrough, since the compression line pipe D leads either from a larger distributing main, or Well itself in which gas flows under high pressure, or from a compression apparatus.

The gas compression chamber is in th form of a long tube E suspended within the gas tube with its lower end in proximity to the bottom of the well. The upper end of this tube extends through the cross fitting C and 1s closed by a T itting'e, which is connected bythe pipe c with the compresreceives the'pipe c leading from the com`- sion line pipe D and is also provided with the shut-ottl valve e2. The gas tube B and the compression chamber E are both secured in'position at the mouth of the Well by any suitable form ot supports, and in the illustrations, I have shown the usual clamps. comprising the plates 1, 2 and 3, the two latter forming supports on which the fittings C and e rest. Y

The eduction pipe or Siphon is a smaller pipe mdicated by F, arranged within and movable longitudinally of the gas chamber E and projecting from the upper end of the f latter, Where it is provided with any suitable device for raising and lowering it, as for l which permit gas under pressure in the l l chamber E to enter the eduction tube for the purpose of raising and expelling the liquidA entrapped therein.

:il l 1,104,133

the successful gasifying, or aerating, of the fluid column when this is being expelled. In order, therefore, to' prevent the entrance of fluid -iiitothe pressure chamber, other than that which may leak through the fine perforations in the eduction tube, I arrange etween these two tubes. at the lower end, a`

restriction G, which also serves as aguidel for the lower end of thepipe F. In constructing these parts, I prefer to make the restriction Gr in the form of aninwardly extending rin on a sleeve or nipple, screwed' in the coup ing g attached to the lower end of the pipe E. I also provide this restricy tion on its upper side with a valve seat g', with which may cooperate the valve head f formed on a tip piece or thimble secured to the lower end of the pipe F. On its lower side, the restriction G is provided with another valve seat g2 with which engages the valve head H, which is normally. -held against its seat, as shown in Fig. 2, by the gas pressure in the well, the head being guided in the spider 71. carried in the cou'- pling it', on the lower end of the nipple g, said coupling also forming a connection for the lower perforated foot or anchor E on l the extremity of thechainber E.

' The operation of ejecting liquid from the bottom of the well, consists in first introlducing fluid pressure into`the welly cavity to expel the liquid into the eduction tube and thereafter directing the .gas pressure into the chamber E and forcing the liquid upwardly out of the eduction tube. -In can rying out these steps, the eduction pipe F is lowered byv the Jack f and acting as a lunger engages the valveI-I a'nd unseats it.

he fluid in the well, acted upon r'by the gasf pressure in the 'pipe B,' passes upwardly` through the spider l1., andthrough the lateral openings f4 into the pipe F until the Weight of the hydrostatic column thus created counterbalances the gas pressure in the well. The pipe F may then be retracted "when the valve 'head H again seats itself.

At this time, the valve f3 is open, and the valves c', ,e2 and B2 are closed. After the valve H is closed, valves e2 and Z can be opened to connect the compression line'D to the chambergE. .The pressure Athus troduced into the chamber E will seek an' outlet through. the various perforations f5,' forcing tlie liquid vin the eduction tube FV upwardly, and as these perforations are located at various'points in said pipe, the gas escap' through them serves to breakup and lig ten the liquidcolumn resulting in tlie' rdischa ge of La considerable volume o f fluid, with only a small loss of gas. I claim as my invention:

1'. In an apparatus of the character described, thek combination with a fluid pres-4 sure chamber and an ejection tube movable longitudinally therein, the lower portions of said chamber and tube being adapted to be Ysubmerged, of a valve 'normally closing the ejection .tube against the entrance of Huid arranged Ito be opened by the movement of said tube and to admit fluid thereinto, said tube being provided with perforations for the inlet of gas from the surrounding charnber and meansfor introducing Huid under pressure into said chamber.

2. In a well cleaning apparatus, the combination with a fluid pressure chamber and an ejection tube movable Alongitudinally therein provided with a plurality of perforations located at dierent positions in its length, the lower ends of said chamber and tube being both adapted to be sub-merged, of 'a valve normally closing the tube and chamber against the entrance of liquid arranged to be operated upon the relative movement of the tube in opposite directions in thechamber to control the flow of liquid into the tube and means for controlling the flow of fluid pressure in the chamber to eject the liquid from the'tube.

3. In a well cleaning apparatus,'the coinbination with a'well casing, an-inclosed gas chamber therein extending approximately to the bottom of the Welland provided with a valve seat, and a valve head normally held engagement with its seat vby the. fluid pressure. in the well, of a perforatcdsiphon tube arranged in the chamber having .an open lower end arranged t'o coperate With the valve head and means for moving lsaid tube longitudinally and a restriction located above said seat and between the chamber and tube and means for controlling the iiow of fluid pressure into the. chamber above the l* restriction.

FWILLIAM P.'

Witnesses:

G. WILLARD RICH,

RANDALL.

Russm v B. Gmrrrrri. 

